Intel SL3QA - Pentium III 550 MHz Processor User manual

Intel®Pentium®III Processor
Specification Update
August 2008
Revision 060
Document Number: 244453-060

2Specification Update
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INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. Intel products are not intended for use
in medical, life saving, or life sustaining applications.
Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “undefined.” Intel
reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future
changes to them.
The Intel® Pentium® III processor may contain design defects or errors known as errata which may cause the product to deviate
from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
Intel, Pentium, Intel Xeon, Celeron, MMX and the Intel logo are trademarks or registered trademarks of Intel Corporation or its
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Copyright © 1999-2008, Intel Corporation.

Specification Update 3
Contents
Preface............................................................................................................................. 8
Summary Tables of Changes.............................................................................................. 10
Identification Information .................................................................................................. 20
Errata ............................................................................................................................ 39
Specification Changes....................................................................................................... 88
Specification Clarifications ................................................................................................. 89
Documentation Changes ................................................................................................... 93

4Specification Update
Revision History
Revision Description Date
-001 This is the first Specification Update for Pentium® III processors. March 1999
-002 Added Erratum E42. Deleted Erratum E16 and renumbered existing
items. Corrected Errata table “Plans” column for E39. Updated the
Pentium III Processor Identification Information table.
April 1999
-003 Updated the Pentium III Processor Identification Information table.
Updated the Errata table by marking Errata E34, E35, and E40 as
Fixed.
May 1999
-004 Updated the Pentium III Processor Identification and Package
Information table. Added Erratum 43. Added Documentation Change
E1. Added Specification Clarifications E1 and E2. Added Specification
Change E3.
June 1999
-005 Added footnote 4 to the Pentium III Processor Identification and
Package Information table. Added Erratum E44. Added stepping Kc0 in
Summary Table of Changes. Added Mixed Steppings in DP Systems
section. Updated Documentation Changes, Specification Clarifications,
and Specification Changes introduction paragraphs.
July 1999
-006 Added Errata E45 and E46. Added Documentation Change E2.
Updated Identification Information table. Updated and corrected
Pentium III Processor Identification and Package Information table.
Updated Codes Used in Summary Table. Updated column heading in
Errata, Documentation Changes, Specification Clarifications and
Specification Changes tables.
August 1999
-007 Revised Errata E45. Updated DP Platform Population Matrix for the
Pentium III Processor with 100 MHz System Bus. Updated datasheet
references to include the latest supported frequency.
September 1999
-008 Added Errata E47. Updated the Pentium III Processor Identification and
Package Information table. Added the DP Platform Population Matrix
for the Pentium III Processor with 133 MHz System Bus table. Added
Brand ID column to Identification Information. Updated datasheet
references to include the latest supported frequency.
October 1999
-009 Added Errata E48 and E49. Added Documentation Change E3. Added
new stepping column in the Summary of Changes tables. Updated the
Pentium® III Processor Identification Information tables. Updated
Mixed Steppings in DP System section. Updated the Pentium® III
Process Identification Information table. Updated references.
November 1999
-010 Updated document references in Preface to include new Pentium III
processor datasheets. Updated errata E10, E11, E19, and E32 in the
Summary of Errata table. Added Errata E50-E58. Added
Documentation Change E4. Added Specification Clarification E3.
Added Specification Changes E4 and E5.
December 1999

Specification Update 5
Revision Description Date
-011 Corrected an error in the Summary of Errata table. Erratum E56 was
incorrectly shown as applying to the Ca2 stepping. Erratum E56 does
NOT apply to the Ca2 stepping.
December 1999
-012 Updated Preface to include new Pentium III processor datasheets.
Added 800-MHz Pentium III processor information to the DP Platform
Population Matrix tables and the Pentium® III Processor Identification
and Packaging Information table. Added note 10 to the Pentium® III
Processor Identification and Packaging Information table and updated
Notes column and other table data. Updated erratum E51. Added
Errata E59-E62. Added Documentation Change E5. Added
Specification Change E6.
January 2000
-013 Updated Errata E49 and E61. Added Documentation Change E6.
Updated the Pentium® III Processor Identification Information.
Updated S-Spec SL365. Updated Summary of Changes product letter
codes.
February 2000
-014 Updated Preface to include new Pentium III processor datasheet.
Updated Pentium® III Processor Identification and Package
Information table. Updated Summary of Errata, Summary of
Documentation Changes, Summary of Specification Clarifications
Summary of Specification Changes tables with Cb0 stepping. Updated
Erratum E48.
March 2000
-015 Special Launch Edition: Updated the new Cb0 stepping information.
Updated the document references in the Preface. Updated DP
population table.
March 2000
-016 Updated Processor Identification Information table. Updated DP
Population Tables. Added Errata E63 & E64.
April 2000
-017 Updated Pentium III Processor Identification and Package Information
table. Updated Errata E64. Added Errata E65 & E66.
May 2000
-018 Updated Processor Identification, Summary of Errata, and Summary of
Specification Changes tables. Updated Dual Processor Tables. Added
new Specification Change E7.
June 2000
-019 Added new errata E67 & E68. Updated Processor Identification Table.
Edited erratum E36. Updated Processor Identification, Summary of
Errata, Summary of Documentation Changes, Summary of
Specification Clarifications, Summary of Specification Changes tables
with cC0 Stepping.
July 2000
-020 Added new Erratum E69. Updated Dual Processor Matrix. Updated Dual
Processor Matrix. Updated Processor Identification Table with new C0
step CPUs.
August 2000
-021 Added New Errata E70 & E71. Added Re-Writes for Errata E28, E48, &
E62. Added New Documentation Changes E7 & E8. Updated Dual
Processor Matrix, removed TBDs. Updated Processor Identification
Table.
September 2000
-022 Updated Pentium®III Processor Identification Information table.
Updated Dual Processor Matrix. Added New Errata E72 and E73. Added
New Documentation Changes E9 and E10.
October 2000
-023 Updated Processor Identification Table. Added New Erratum E73. November 2000

6Specification Update
Revision Description Date
-024 Updated Specification Update product key to include the Intel®
Pentium® 4 processor, Revised Erratum E2. Added new
Documentation Changes E11 – E16.
December 2000
-025 Revised Erratum E2. Added new Documentation Changes E17 and E18.
Updated Processor Identification Table.
January 2001
-026 Added new Documentation Change E19. Revised Documentation
Change E17.
February 2001
-027 Added new Errata E74 and E75. March 2001
-028 Added erratum E76 March 2001
-029 Revised Erratum E76 to Fixed. Updated processor identification table.
Updated the tables in the Mixed Steppings in DP Systems section.
May 2001
-030 Updated note 18 in the Pentium® III Processor Identification and
Package Information table. Updated Specification Update product key
to include the Intel® Xeon™ processor
June 2001
-031 Special Launch Edition: Added package marking information under
General Section. Added new S spec info into processor table. Updated
Dual Processor tables. Updated Summary of Errata, Summary of
Documentation, Summary of Specification Clarifications, and Summary
of Changes tables. Added Errata E77 & E78.
June 2001
-032 Added new S spec info into processor table. Revised package marking
information under General Section. Updated Dual Processor tables.
Deleted duplicate information in the processor ID table.
July 2001
-033 Added new errata E79 and E80. Updated DP Matrix Tables August 2001
-034 Changed word “motherboard” to “baseboard” in erratum E78 October 2001
-035 Updated DP population matrix for new tA1 parts. Added Doc Changes
E20, E21, E22, E23, and E24.
November 2001
-036 Special launch edition. Added part with S-Spec SL5VX at 1.33GHz to
the Pentium® III Processor Identification and Package Information list.
November 2001
-037 Added: Doc changes E25, E26, E27, E28, E29, Spec Clarification E4, E5
and Spec Change E8. Added part with S-Spec SL657 to the Processor
ID Information Table
February 2002
-038 Modified Erratum E80 and added Erratum E81. Added Doc Change E1. March 2002
-039 Out of Cycle Special Launch Edition. Added Server LV part with S-Spec
Number SL66D at 800 MHz to the Pentium® III Processor Identification
and Package Information list.
March 2002
-040 Added Doc Change E1. April 2002
-041 Modified Errata E59. Added Doc Changes E1, E2, and E3. May 2002
-042 Added Erratum E82. Added Doc Changes E1 and E2. Added parts with
S-Spec numbers SL6C2, SL6C3, SL6C4 and SL6BZ with Core Stepping
tB1 to the Processor ID Information Table.
June 2002
-043 Added Document Changes E3-E12. Added parts with S-Spec numbers
SL6BW, SL6BX, SL6BY and SL6HC with Core Stepping tB1 to the
Processor ID Information Table. Changed status of erratum E78 to
NOFIX.
July 2002

Specification Update 7
Revision Description Date
-044 Added new Doc Changes E3-E24. Removed parts with S-Spec numbers
SL6C2, SL6C3, SL6C4 and SL6BZ with Core Stepping tB1 from the
Processor ID Information Table.
September 2002
-045 Added Doc Changes E25 to E32. Updated Summary of Changes. October 2002
-046 Updated DP FC-PGA2 Matrix table. Added one S-spec number. December 2002
-047 Added Erratum E83. March 2003
-048 Updated Summary of Errata table E78 and Added one S Spec number. May 2003
-049 Added Errata E84 and E85. November 2003
-050 Updated E85 and added E86 to E89 October 2004
-051 Added Errata E90, E91, E92 November 2004
-052 Added Errata E93, E94 February 2005
-053 Updated Errata E80 March 2005
-054 Added Specification Clarification April 2005
-055 Added Errata E95, E96, E97, E98, E99, E100, E101, E102, E103, E104,
E105, E106, E107. Updated Summary Table of Changes. Updated the
name of the Sofftware Developer Manuals.
December 2005
-056 Added Erratum E108 January 2007
-057 Updated Summary Table of Changes. May 2007
-058 Added Erratum E109. Updated Summary Table of Changes. August 2007
-059 Updated Summary Table of Changes. April 2008
-060 Updated Summary Table of Changes. August 2008
§

Preface
8Specification Update
Preface
This document is an update to the specifications contained in the documents listed in
the following Affected Documents/Related Documents table. It is a compilation of
device and document errata and specification clarifications and changes, and is
intended for hardware system manufacturers and for software developers of
applications, operating system, and tools.
Information types defined in the Nomenclature section of this document are
consolidated into this update document and are no longer published in other
documents. This document may also contain information that has not been previously
published.
Affected Documents
Document Title Document
Number/Location
Pentium®III Processor for the SC242 at 450 MHz to 1.13 GHz datasheet
Pentium® III Processor for the PGA370 Socket up to 1.13 GHz
datasheet
244452
245264
Related Documents
Document Title Document
Number/Location
Intel Architecture Software Developer’s Manual, Volumes 1, 2a, 2b, 3a
and 3b
253665, 253666,
253667, 253668,
253669
Nomenclature
Errata are design defects or errors. Errata may cause the Pentium III behavior to
deviate from published specifications. Hardware and software designed to be used
with any given stepping must assume that all errata documented for that stepping
are present on all devices.
Specification Changes are modifications to the current published specifications.
These changes will be incorporated in the next release of the specifications.
Specification Clarifications describe a specification in greater detail or further
highlight a specification’s impact to a complex design situation. These clarifications
will be incorporated in the next release of the specifications.

Preface
Specification Update 9
Documentation Changes include typos, errors, or omissions from the current
published specifications. These changes will be incorporated in the next release of the
specifications.
Note: Errata remain in the specification update throughout the product’s lifecycle, or until a
particular stepping is no longer commercially available. Under these circumstances,
errata removed from the specification update are archived and available upon
request. Specification changes, specification clarifications and documentation
changes are removed from the specification update when the appropriate changes
are made to the appropriate product specification or user documentation
(datasheets, manuals, etc.).
§

Summary Tables of Changes
10 Specification Update
Summary Tables of Changes
The following table indicates the Specification Changes, Errata, Specification
Clarifications or Documentation Changes, which apply to the listed MCH steppings.
Intel intends to fix some of the errata in a future stepping of the component, and to
account for the other outstanding issues through documentation or Specification
Changes as noted. This table uses the following notations:
Codes Used in Summary Table
Stepping
X: Erratum, Specification Change or Clarification that applies
to this stepping.
(No mark) or (Blank Box): This erratum is fixed in listed stepping or specification
change does not apply to listed stepping.
Status
Doc: Document change or update that will be implemented.
PlanFix: This erratum may be fixed in a future stepping of the
product.
Fixed: This erratum has been previously fixed.
NoFix: There are no plans to fix this erratum.
Row
Shaded: This item is either new or modified from the previous
version of the document.
Each Specification Update item is prefixed with a capital letter to distinguish the
product. The key below details the letters that are used in Intel’s microprocessor
Specification Updates:
A = Dual-Core Intel® Xeon® processor 7000 sequence
C = Intel® Celeron® processor